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Java: Difference between the setPreferredSize() and setSize() methods in components
... the preferred (as well as minimum and maximum) sizes of their components, then using setSize() and setLocation() to position those components according to the layout's rules.
For example, a BorderLayout tries to make the bounds of its "north" region equal to the preferred size of its north componen...
What's a correct and good way to implement __hash__()?
...key tuple. It won't be as fast as a specialized hash, but if you need that then you should probably implement the type in C.
Here's an example of using a key for hash and equality:
class A:
def __key(self):
return (self.attr_a, self.attr_b, self.attr_c)
def __hash__(self):
...
How to see full query from SHOW PROCESSLIST
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@R.Haq If it's the only query you're going to do, then the semicolon is not necessary. If you want to do more than one query, then you do need the semicolon after each of them.
– Julio Garcia
Dec 13 '17 at 17:20
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Write a number with two decimal places SQL server
... If the input data was: DECLARE @test DECIMAL(18,6) = 0.456789 then SELECT FORMAT(@test, '##.##') returns: .46 How do you get it to show the leading zero: 0.46 ?
– luisdev
Jul 9 at 7:27
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Jaxb, Class has two properties of the same name
...are multiple solutions but basicly if you annotate on variable declaration then you need @XmlAccessorType(XmlAccessType.FIELD), but if you prefer to annotate either a get- or set-method then you don't.
So you can do:
@XmlRootElement(name="MY_CLASS_A")
@XmlAccessorType(XmlAccessType.FIELD)
public c...
How to add Active Directory user group as login in SQL Server
...e a .net application which is connecting to the SQL Server using windows authentication.
4 Answers
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warning: [options] bootstrap class path not set in conjunction with -source 1.5
...$'
Set JAVA_HOME so that rt.jar is located at $JAVA_HOME/jre/lib/rt.jar, then:
javac -source 1.7 -bootclasspath "$JAVA_HOME/jre/lib/rt.jar" Main.java
Tested on Ubuntu 14.04 for Oracle Java 7 and 8.
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Understanding spring @Configuration class
...ration. Say you have a class that mocks some functionality in development, then you want to swap it out for another class in the UAT environment. Using XML, then its just a matter of changing the config and allowing the application to run/restart. With these new class configurations, the classes wou...
The case against checked exceptions
...and you're okay. But what if you're a noob and you didn't learn the idiom. Then, of course, you start out with
f = fopen("goodluckfindingthisfile");
f.read(); // BANG!
and learn the hard way.
Note that we're only talking about strongly typed languages here: There's a clear idea of what an...
How to debug Lock wait timeout exceeded on MySQL?
...ySQL clients just use a regular semicolon instead.
– thenickdude
Aug 15 '17 at 9:48
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